Pennsylvania counties where Biden saw the greatest improvement over Obama
Comparing the presidential election margins in five key counties in 2012 to 2020.
Table with 3 columns and 5 rows.
County
2012 election
2020 election
Chester
Romney + 0.2
Biden +17
Montgomery
Obama +14
Biden +26
Cumberland
Romney +18
Trump +11
Allegheny
Obama +15
Biden +20
Delaware
Obama +21
Biden +27